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Because they're rare earth elements.
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∙ 11y ago
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Where are the lanthanides and actinides placed on the periodic table?
At the bottom of the Periodic Table
Do actinides and lanthanides lose electrons when combining?
Actinides and lanthanides lose electrons and form cations.
Why are lanthanides in period six and actinides in period 7?
Lanthanides have 6 electron shells. Actinides have 7 electron shells.
Where do the lanthanides and actinides get their names?
They are the two rows placed at the bottom of the periodic table. The first row is called lanthanides and the second is called actinides. They are also known as f-block elements as the electrons are added in the f-orbitals.
Are group 12 on the periodic table lanthandies or actinides?
No. There are two rows at the bottom of the periodic table. the first row elements are called lanthanides and the second row elements are called actinides.
What two elements are shown at the bottom of the periodic table?
Lanthanides and Actinides.
What is the difference between lanthanides and actinides?
Wht is the difference between Lanthanides and Actinides?
What are the element at the bottom of the periodic table?
Lanthanides and actinides (or f-block elements).
What two chunks of the periodic table are at the bottom to make it smaller?
Lanthanides & Actinides
Where is lanthanides and actinides in the periodic table?
The 2 bottom rows separated from the rest
Why are the actinides and lanthanides at the bottom of the table?
Just so it can fit on one page
Where are the lanthanides and actinides placed on the periodic table?
At the bottom of the Periodic Table
Do actinides and lanthanides lose electrons when combining?
Actinides and lanthanides lose electrons and form cations.
What two are shown at the bottom of the periodic table in order to keep the table a reasonable size?
Lanthanides and actinides!
Why are lanthanides in period six and actinides in period 7?
Lanthanides have 6 electron shells. Actinides have 7 electron shells.
Where do the lanthanides and actinides get their names?
They are the two rows placed at the bottom of the periodic table. The first row is called lanthanides and the second is called actinides. They are also known as f-block elements as the electrons are added in the f-orbitals.
How many lanthanides and actinides are there?
There are 15 lanthanides (atomic numbers 57-71) and there are 15 actinides (atomic numbers 89-103)
